Punching and stitching machine.



(a. c. COOPER PUNCHING AND STITCHING'JMACHINE.

APPLICATION FlLED JAN. 26, 1918.

Patented Dec. 24, 1918.

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G. G. COOPER.

PUNCHING A ND STITCHING MACHINE.

APPLICATION FILED JAN. 26. 1918.

l ,288,8%O I Patented Dec. 24, 1918.

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G. C. COOPER. PUNCHING AND STITCHING MACHINE.

APPLICATION FILED JAN. 26. 1918.

Patented Dec. 24, 1918.

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[memni SYLVANIA.

To all whom it may concern:

'5 Be it known that I, GRovER C. COOPER, a citizen of the United States, residing at Camden, in the county of Camden, State of j New Jersey, have invented new and useful Punching and Stitching Machines, of which the following is a specificatlon.

1 My invention relates to improvements 1n method and means for punching and stitching. The object is to provide lmproved means for producing one or more rows of stitches and simultaneously producing one or more rows of perforations at a required ratio to the stitches.

The invention comprises means for altering or adjusting the ratio between the number of stitches and the number of perforations. 'i The invention also comprises means for I. rendering inactive the punching mechanism when it is desired to produce stitches only.

The invention comprises a mechanism or organization that may be attached to a standard sewing machine. Referring to the drawings, which illu trate merely by way of example a suitable means for realizing the invention.

Figure 1 is a side elevation of a sewing machine provided with the attachment comprising my invention. Fig. 2 is a sectional plan View on l1ne 2, 2 of Fig. 1.

' Fig. 3 is a vertical section on line 3, 3 of 1: Fig. 1.

*f- Fig. 4 is a vertical section on line 4, 4

" of Fig. 2.

j Fig. 5 is a perspective view of the needle bar and associated mechanism on an en- 1 larged scale.

Fig. 6 is a section on line 6, 6 of Fig. 1 on an enlarged scale.

Fig. 7 is a section on line 7, 7 of Flg. 1.

out rod on an enlarged scale.

Similar numerals refer to similar parts throughout the several views.

The supporting frame 11 is attached to the base plate 12 of the ordinary sewing machine by the screws 13 and has an arm 14 0 connected with said frame which is attached l to the stationary arm 15 of the sewing machine. On the driving shaft 16 of the sewing machine are secured the pinions 17 and 18 of differing diameter. For example, pin- 5 ion 17 is provided with twenty teeth while Specification of Letters Patent.

Fig. 8 is a perspective view of the throw-' MED STATES PATENT @FFTQE.

' GROVER G. COOIER, OF CAMDEN, NEW JERSEY, ASSIGNOR OF ONE-THIRD TO MICHAEL C. LANE AND ONE-THIRD TO JAMES E. SHIPLEY, BOTH OF PHILADELPHIA, PENN- PUNCHING- AND STITCI- IING MACHINE.

Patented Dec. 24, 1918.

Application filed January 26, 1918. Serial No. 213,894.

pinion 18 is provided with thirty teeth. In the supporting frame 11 is mounted the shaft 19. on shaft 19 are mounted the gear wheels-20 and 21; gear wheel 20 having sixty teeth meshing with pinion 17 and gear wheel 21 having forty teeth meshing with pinion 18. On shaft 19 is also mounted the cam Wheel 22 provided with a channel 23. Shaft 19 is provided with a groove or channel 24 having therein a slidable key 25 with a knob 26 for manual operation. This key is provided with the lugs 27 and 28. Key 25 is adapted to be shifted to bring the lug 28 into cooperative locking engagement either with gear 20 or 21 as desired. Lug 27 always remains in looking engagement with cam wheel 22. Lever 29 is mounted on shaft 30 journaled in the framework 11. The upper end of lever 29 is provided with the roller 31 projecting into the channel 23 of cam wheel 22. On shaft 30 is also mounted the lever 32 having pivotally connected at its free end, at 33, the rod 34. The upper end of rod 34 is provided with a stud 35 normally engaged in the recess or slot 36 of member 37.

Member 37 is pivotally connected at 38 with rod 39. Rod 39 is pivotally connected at its upper end at 40 with the lever which is mounted on shaft 51- journaled in the bearing 52 of the frame 11. At the other end of shaft 51 is secured the lever 53 which is provided at its free end with the fork 54 pivotally connected at 55 with the bracket 56 having a sleeve 57 slidably mounted on the presser bar 58. To this bracket 56 is secured the attachment member 59 having the end 60 projecting in the slot 61 of the formation 62 at the lower end of needle bar 63. This projecting end 60 carries the punch 64.

Member 37 is provided with a lug or projection 65 engaglng the spring 66 to maintain the member 37 normally in engagement with the stud 35.

The rod 67 is slidably mounted in the 100 slot 68 and has a hook or bent-over extension 69 adapted to engage the pin 70 on member 37 By moving this rod 67 to the right the member 37 is withdrawn from engagement with stud 35. A spring 210- 105 tuated manually operated catch 71 is adapted to engage in notch 72 to maintain rod .67 in the desired position of engagement.

This latch may be released by pressure on with the thumb-piece 75 for manual operathe formation 62 at the end of theneedle.

bar 63, is adapted to carry two needles 78,

. while the slot 61 therein permits the up and down independent reciprocation of the projection 60 carrying the punch 64. This punch may 'be of any desired formation,

and in multiple if des red. 1 -As iswell known,- with each rotation of shaft 16, one stitch is made with each needle. I

With each rotation of cam wheel 22 the lever 29 carrying wheel or roller 31 travel-'., ing inchannel 23, is given a forward and back reciprocation, and through the connecting mechanism described,the punch carrying' formation is given an upward and downward reciprocation. That is, one

rotation of cam wheel 22. In order there: fore,that the "number of stitches per needle and the number of 'perforations per punch shall be different, that is, have arequired 4 ratio, I have provided means whereby the cam wheel 22 shall have a rotative movement relative to the rotative movement of the shaft 16. It is also desirable to change this ratio of movement between c'am wheel .22 and shaft 16 to meet :difiering requirements. Hence with the arrangement shown,

by shifting the key-member 25 so that lug 28 shall be out of engagement with gear wheel 21, but' in engagement with gear wheel 20, gear whee1 20 andcam wheel 22 will be locked to shaft 19 and will rotate together, driven by pinion 17 while21 will move idly. Since the ratio of gear teeth on pinion 17 and gear wheel 20 is twenty to sixty or one to three, it follows that shaft 16 will rotate three times to eachrotation of cam wheel \22. This gives three stitches punch. y shiftingthe key-member 25 to the position shown in Fig. 4, gear wheel21 gears or by substituting different gears for those shown.

Where, for any reason, it is desired to form stitches without perforations, the punching or perforating'mechanism may be thrown out of action in the following way.

er needle to one perforation per 71 now engages the notch 72 on rod 67 and..-

holds the parts in the withdrawn position until thumb piece 74is actuated to release same. In this withdrawn position of mem ber 37, rod '34reciprocates idly, lever 53 is held by the spring 76 up against setscrews. '77, and thepunch is held in the elevated position, inactive.

-What I claim is 1. In combination with a sewing mach-ine,

a perforating device, operating mechanism therefor, including reducing gears operative between the driving shaft of the machine and the said operating mechanism, and ad ustable means for renderlng eflective the desired. gear.

- 2.- In combination with a sewing machine, a: perforating device, operating mechanism therefor, including reducing gears of difpunching operation is performed Wltll each ferent ratios operative between the driving shaft of the machine and the said operating mechanism and adjustable selective means for rendering effective the reducing gear of desired ratio.

3. Anattachment for a sewingmachine,

comprising a reciprocating punch holding cam operated. lever and. punch holding means.

means, actuating: meanstherefor comprising a plurality of gear, wheels or pinions of different diameters on the driving shaft of the sewing machine, a'plurality of ear wheels coiiperating therewith, a cam weel, means for locking the cam wheel to any one of the last mentioned gear' wheels as desired, a lever actuated by the cam and means for establishing operative relationship between said cam-operated lever and the reciprocating punch holding means.

r 5. An attachment for a sewing machine, comprisinga reciprocating. punch holding means, actuating means therefor comprising a gear on the driving shaft of the sewing -machine, a. gear wheel codperating therewith, a cam wheel driven thereby, a lever actuated by the cam, means for establishing operative relationship between said cam 0perated lever and the reciprocating punch 4. An attachment for a sewing machine, comprising a reciprocating punch holding 6. An attachment for a sewing ,machine,

1 comprising a reciprocating punch holding means, actuating means therefor comprising a gear on the driving shaft of the sewing machine, a gear wheel cooperating therewith, a cam Wheel driven thereby, a lever actuated by the cam, means for establishing operative relationship between said cam operated lever and the reciprocating punch o holding means, means arbitrarily actuated for rendering the last mentioned means inoperative, comprising a disengageable connecting mechanism and means for arbitrarily disconnecting the same.

7. An attachment for a sewing machine,

comprising a reciprocating punch holding T member, actuating means therefor comprising a gear on the driving shaft of the sewing machine, a gear wheel cooperating therewith, a cam wheel driven thereby, a lever actuated by the cam, means for establishing operative relationship between said cam operated lever and the reciprocating punch holding member, means arbitrarily actuated for rendering the last mentioned means in operative, comprising a disengageable coni necting mechanism, means for arbitrarily disconnecting the same, and a detent' for holding the connecting mechanism in disengaging position.

8. An attachment for a sewing machine, comprising a reciprocating punch holding means, actuating means therefor comprising a gear on the driving shaft of the sewing machine, a gear wheel cooperating therewith, a cam wheel driven thereby, a lever actuated by the cam, means for establishing operative relationship between said cam operated lever and the reciprocating punch holding means, and a spring controlled connecting member for normally holding the parts in operative relationship.

9. An attachment for a sewing machine, comprising a reciprocating punch holding means, actuating means therefor comprising a gear on the driving shaft of the sewing machine, a gear wheel cooperating therewith, a cam wheel driven thereby, a lever actuated by the cam, means for establishing operative relationship between said cam operated' lever and the reciprocating punch holding means, a spring controlled connecting member for normally holding the parts in operative relationship, and arbitrarily operated means for disengaging said connecting member.

GROVER C. COOPER. 

